P1441 Fault in 1996 Chrysler Grand Am 3.1L - EVAP System Flow During Non-Purge
I'm experiencing a P1441 diagnostic trouble code on my 1996 Chrysler Grand Am with a 3.1L engine, specifically during the non-purge phase of the EVAP system. According to my repair manual, if air can be blown through the purge tube but not sucked through it, this indicates a faulty diaphragm in the EVAP canister. I've inspected all components and found no issues elsewhere. The only thing that stands out is that when testing the purge tube, I was able to suck air through it but could not blow air through it—this matches the symptom described in the manual. My vehicle had been sitting for a long time before I acquired it, which may have contributed to component degradation. Any insights or additional troubleshooting steps would be greatly appreciated.
Could there be another solenoid or valve in the EVAP circuit besides the canister itself?